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Abstract #0933

An Iterative Self-Navigation Approach to Improve Image Quality in Subjects with Irregular Breathing in Whole Heart Coronary MRA.

Giulia Ginami 1,2 , Gabriele Bonanno 1,2 , Juerg Schwitter 3 , Matthias Stuber 1,2 , and Davide Piccini 4,5

1 Center for Biomedical Imaging (CIBM), Lausanne, Switzerland, 2 Department of Radiology, University hospital (CHUV) and University of Lausanne (Unil), Lausanne, Switzerland, 3 Department of Cardiology, University hospital (CHUV), Lausanne, Switzerland, 4 Department of Radiology, Center for Biomedical Imaging (CIBM) and University hospital (CHUV), Lausanne, Switzerland, 5 Advanced Clinical Imaging Technology, Siemens Healthcare IM BM PI, Lausanne, Switzerland

In this study, differences in the respiratory patterns of volunteers and patients were analyzed and reported using a respiratory self-navigated approach. Furthermore, a novel iterative approach for self-navigation was developed and described. This technique has the advantage of being independent from the choice of a specific respiratory reference position for motion correction, and showed improved performances with respect to a more standard approach when respiratory motion correction was applied to irregular breathing patterns of patients.

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